Mammals

 Today we start studying mammals. The main characteristics of mammals are:

1. They are vertebrates.
2. They are viviparous, they are born from their mother's womb.
3. They drink milk when they are babies.
4. They have hair or fur.
5. They breathe with lungs.
6. They can be carnivores (eat meat), herbivores (eat plants) or omnivores (eat both).